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Premedia Presentation

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  • 1. Avoiding PDF pitfalls Dwight Kelly Apago, Inc. Premedia Conference – Lancaster, PA 2002
  • 2. Avoiding PDF pitfalls Research and understand Design your workflow Test and tune Implement Promote Premedia Conference – Lancaster, PA 2002
  • 3. PDF 101 Designed by Adobe for storing digital documents Now used for web, ebooks, forms, etc. Evolved over time to support Print needs Not proprietary allowing developers to innovate Free Acrobat Reader Retail Acrobat & Distiller Current versions are PDF 1.4 / Acrobat 5.0.5 Premedia Conference – Lancaster, PA 2002
  • 4. What’s in a PDF? PDF stores everything as objects A table of contents is used to locate each object Objects can refer to other objects Objects can be reused Some object types include: Pages, Content, Fonts, Images, Color spaces Annotations, Forms, Job tickets, Metadata Premedia Conference – Lancaster, PA 2002
  • 5. It all starts with the Page A PDF document is organized into Pages A Page is composed of: One of more Boxes (Media, Trim, Bleed) Content stream Resources (Colorspace, Images, Fonts) Premedia Conference – Lancaster, PA 2002
  • 6. Color spaces PDF supports several types of color Grayscale RGB CMYK Color managed ICC and Lab Special types: Pattern, Separation, DeviceN Premedia Conference – Lancaster, PA 2002
  • 7. Images Images are typically the largest component May use any PDF color space Many be any resolution PDF supports several compression types Lossy: JPEG Loss-less: LZW, RLE, Flate, G3/G4, JBIG2 Premedia Conference – Lancaster, PA 2002
  • 8. Fonts PDF supports just about any font format Type 1, TrueType, Bitmap, CID Fonts can be embedded or omitted Unused characters can be removed (subsetted) Encodings maybe customized (Euro symbol) Premedia Conference – Lancaster, PA 2002
  • 9. Misc. stuff ASCII vs. Binary encoding OPI PDF 1.4 transparency New features with every revision of Acrobat Premedia Conference – Lancaster, PA 2002
  • 10. Getting your toes wet Join an association such as GATF or DDAP Use industry standards such as PDF/X-1a Or use vendor provided specifications Review legacy data issues (DCS, TIFF/IT-P1) Think about future use of content (web, ebooks) Identify potential problem areas Design a workflow for your requirements Premedia Conference – Lancaster, PA 2002
  • 11. Best practices – Native document Using specs, design master document templates Set page, trim and bleed sizes Include printer marks and slug info Gluon Cropster & Slugger plug-ins Remove any unused colors (Red, Green, etc.) Make sure “design-only” colors are set to process Premedia Conference – Lancaster, PA 2002
  • 12. Best practices – Native document Try to stick with Type 1 fonts or verified TrueType fonts Understand your font licensing agreements Use high-resolution images in TIFF or EPS format Photoshop EPS w/color management problems Photoshop multi-tone images Quark tinted images (Agfa CTIFF, Prinergy XT) Premedia Conference – Lancaster, PA 2002
  • 13. Best practices – Native document If you have DCS files…. Photoshop – open and resave as composite EPS Photoshop – DCSmerger from impressed software Other – Total Integration SmartXT or print separations and recombine later with Creo Seps2Comp Acrobat plug-in Agfa Apogee workflow Premedia Conference – Lancaster, PA 2002
  • 14. Best practices – Native document If you have TIFF/IT-P1 or Scitex files…. Try to keep them in LW + CT formats Otherwise, convert them to PDF LW+CT Apago Piktor Rorke Data PageComposer Shira CEPS2PDF Pro: Smaller than original LW+CT Con: Can be a RIP killer Premedia Conference – Lancaster, PA 2002
  • 15. Transparency New feature in PDF 1.4 Available in Illustrator 9+ and InDesign 2.0 Not supported by all RIPs and workflow tools Must be flattened if converted to PostScript During flattening, elements are rasterized and spot colors maybe converted to process Not visible in Acrobat 4.0 and earlier Maybe created using new Drop Shadow tools Premedia Conference – Lancaster, PA 2002
  • 16. Trapping Don’t trap in design application … rather, do trapping later in production process Premedia Conference – Lancaster, PA 2002
  • 17. Preparing to create PDF Preflight native document Extensis Preflight Pro Gluon QualityCheck Markzware FlightCheck CompuSense FlightAlert Adobe InDesign Verify page sizes, fonts, image resolution and scaling, colors, etc. Premedia Conference – Lancaster, PA 2002
  • 18. Making a PDF with Distiller Step 1 – Create PostScript Use latest Adobe PostScript printer driver (8.7+) Use Acrobat or DDAP Universal PPD file Print composite not separations Remove unused colors, embed all fonts Tools callas MadeToPrint XT Agfa CTIFF XT (free) Creo Prinergy XTs (free) Premedia Conference – Lancaster, PA 2002
  • 19. Making a PDF with Distiller Step 2 – Convert PostScript to PDF Distiller has way too many options Settings can be stored in a “Job Options” file Use Acrobat’s built-in “Prepress” job options… or the DDAP job options Use Creo’s free Prinergy Distiller Tools Use impressed DistillerSecrets or custom Document Info to track what Distiller options were used and what workflow produced the file. Premedia Conference – Lancaster, PA 2002
  • 20. Save as PDF PageMaker and InDesign have “Export PDF” Illustrator 8/9 “Save as PDF” Illustrator 10 is native PDF Photoshop can save as PDF Quark’s PDF filter requires Adobe Distiller Premedia Conference – Lancaster, PA 2002
  • 21. Enhanced Distillers Agfa Apogee Create Creo Synapse JAWS PDF Creator Workflows Agfa Apogee Creo Prinergy & Brisque DALiM Twist, DSEA, Fuji, and many more…. Premedia Conference – Lancaster, PA 2002
  • 22. Post-Distiller issues Recommend Acrobat 5.0.5 Configure Acrobat viewer enable “Overprint preview” disable “Use local fonts” disable “Smooth images” disable “Optimize for Fast Web View” Premedia Conference – Lancaster, PA 2002
  • 23. Preflight PDF There are several really nice PDF preflight tools Adobe InProduction is dead callas pdfInspektor2 Enfocus PitStop Premedia Conference – Lancaster, PA 2002
  • 24. Other useful PDF tools Agfa BleedViewer (free) Apago imageAlter Creo Geometry tool (free) Creo Pagelet Creo Seps2Comp Enfocus Eyedropper Quite a Box of Tricks Premedia Conference – Lancaster, PA 2002
  • 25. Other useful PDF tools (cont’d) callas pdfOutput Lantana CrackerJack Heidelberg SuperTrap Scenicsoft TrapWise Premedia Conference – Lancaster, PA 2002
  • 26. PDF/X to the rescue? PDF/X was designed to make it easier to create and exchange reliable PDF files for printing Both a US and International standard Early adopters report great success Major publications have announced a 100% switch to PDF/X from native files, DCS and TIFF/IT Organizations such as the DDAP have developed detailed workflow implementation guidelines. Tools to create and preflight PDF/X are cheaper and easier to use. Premedia Conference – Lancaster, PA 2002
  • 27. Why two PDF/X versions? Both PDF/X-1a and PDF/X-3 require the PDF file to be complete. All fonts must be embedded and all images must be high-resolution. Pages must have Trim and Bleed boxes. PDF/X-1a was designed primarily for the U.S. advertising market and is limited to grayscale and CMYK. PDF/X-3 adds support for color-managed RGB and Lab. Premedia Conference – Lancaster, PA 2002
  • 28. How do you create PDF/X? Follow the previous guidelines for creating your native document. Create good PostScript using DDAP PPD file Create good PDF using DDAP Distiller Job options Preflight and make PDF/X using: Apago PDF/X Checkup callas pdfInspektor2 Enfocus PitStop 5 and InstantPDF Premedia Conference – Lancaster, PA 2002
  • 29. Bedtime reading DDAP recommended workflows Adobe’s “PDF Workflows for Print Production” Adobe’s “How to Create PDF Files for Print and Press” Articles by: Scott Tully – “Tully Talks” Stephan Jaeggi Michael Jahn Online forums – CTPP, PlanetPDF, Adobe forums Premedia Conference – Lancaster, PA 2002
  • 30. Links www.adobe.com www.agfa.com www.apago.com www.callassoftware.com www.creo.com www.ddap.org www.enfocus.com www.extensis.com www.gluon.com www.impressed.de www.lantanarips.com www.markzware.com www.pdfzone.com www.planetpdf.com www.printwriter.com Premedia Conference – Lancaster, PA 2002

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